Ophthalmic mounting



y 22, 1952 H. o. COHEN 2,604,011

OPHTHALMIC MOUNTING Filed Jan. 6, 1950 Al eey 0. COHEJV,

INVENTOR.

1Q TrOQA/EY- Patented July 22, 1 952 .UNIIE TA-TES ATE T ucr.'..-=

v Harry O Cohen, Los Angeles, Calif. 1 ApplicaticnJanuary 6,1950, Serial No. 137,244

1 Thisinvention relates generally to a pivotal mounting and particularly to a mounting for pivotally. attaching a temple member toa frame or a pair of spectacles, sunglasses, goggles and the like.

T'jIhe conventionalpivotal attachment between.

a temple member and the frame of a pair of reading glasses includes aclevis attached to the frame member and a tongue attached to the temple member, the tongue being held between the arms.

of the clevis by a threaded screw passing through the'tongue and clevis. It is a common observa-,

tionv that the screwthus holding the temple member to the'frame becomes loosened in use. and will fall out entirely not periodically tightened. Moreover. if the screwis drawn up too tightly the temple members will not easily swing on their mountings with resulting inconvenience to the user in putting the glasses on or takingthem ofi.

Furthermore/fire component parts of such a conventional joint are relatively expensive to manufacture and the screw is normally so small as to be difiicult to insert in the clevis. An unusually small screwdriver is necessary for assembly or disassembly', and after being tightened several times the head of the screw is generally damaged to an extent precluding further utility.

A pivotal connection in accordance with my invention overcomes the above disadvantages and affords the additional convenience that frequent flexing of the, pivotalYjoint has no tendency to cause the pivot to loosen or become disengaged. Furthermore, the component parts of my inventionlend themselves exceptionally wellto economical mass production, with the result that the pivotal connection embodying the present invention can be marketed at a cost substantially below that of the conventional joint. n i

It is an object of my invention therefore to disclose a novel pivoted mounting for connecting a temple member to the frame of a pair of eyeglasses.

raisi s. wise-e Y furtherobiect to provide such a mounting which may be used with plastic rimmed spectacles as advantageously as with metallic framed spec These and other objects and purposes of my invention will become clear from a reading of the following description taken in connection with the accompanying drawings.

In the drawings: T V

Fig. l .is a fragmentary perspective'view of a spectacle lens and a portionof the frameyt'ogether with a portionoi a temple member pivotally attached to the frame.

Fig. 2 is a. fragmentary plan view on an enlarged scale, partially in section, of my pivoted mounting Fig. 3 is a fragmentary side elevational'viewbf the mounting.

Fig. 4 is a per'spe'ctive view of slotted cylinder as used in manufacturing my pivoted mounting. I

v Fig. 5 is a perspective View of a radially tapped rodfrom which bearing pins are 'cut for use in myinventionl Fig. 6" is a fragmentaryplan viewer a pivoted mounting in accordancewith' my invention as.

l adapted for use with non-metallic frame and temple member. i Fig. 7 is a fragmentary'plan view of an alternativeform of cylindrical sleeve of my invention.

Fig; 8 is a" sectional view taken on line VIII-VIII of Fig. '7 with the bearing p n removed.

Fig. '9 is a fragmentary plan view' of an valternate form'of non-metallic" temple member.

Generally speaking the present invention contemplates the provision of a cylindricalbe aring sleeve fixed to each outermost end of the frame of a pair of eyeglasses, the axis of the sleeve being substantially parallel to the plane of the lens. Within the sleeve is rotatably carried a bearing pin provided with a threadedrecess perpendicular to the axis of the pin, and an arcuateslot. through the side wall of the cylindrical sleeve communicates with the interior afiordingaccess to the threaded-recess, Each temple member is provided with an externally threadedend boss which projects through the arcuate slot and is threaded.

I is so configured as to partially surround: the. out-' side of the-cylindrical sleeve when the devicelis.

assembled and the temple members are .opened a bored and? unin-.

1 side surface of cylindrical portion: I'B:

Referring *now in detail to Fig. l, a lens I8 is attached in conventional manner to; a: frame;

member II which also carries a bridge rest I2 designed to rest on the bridge of the nose. A

curved member l6 of the frame extends across the top of the lens to one side thereof and is provided with a portion l1 extendingslightly rear: wardly of the plane of lens I8. Portion I1 te'rminates in a virtually cylindricalend portion or.

4 seen that temple member 3|, supported through its threaded end boss 32, may be pivotally swung about frame member I1, pivot pin 26 rotating approximately 90 within cylindrical bore I9. The inner surface of locking and contour finger 33 contacts the outer surface of portion I8 when the temple is in open position, as appears best in Fig. Landprevents disen ement of: end boss 2.; rbm-threa e e s-28.bypre en insr of the temple on the axis of boss 32. As mentioned previously, I preferably contour the surface of end l8, as by making cylindrical bore I9 v -slightly eccentric with respect to the outside di- 7 ameter of cylindrical portion I8, with the result bearing sleeve I8 having a vertically disposed,

smooth bore I9. The construction of cylindrical portion I8 may be best understoodby reference to Fig. 4 whereinis shown a preferred'mea ns for mass producing the cylindrical portion of my invention. Metallic stock 2I is provided" with al9 extending therethrough;-

cylindrical bore This bore I 9 may be slightly eccentric with respect to the stock from which member 2| is formed for reasons more fully disclosed hereafter. On the outer surface of member 2i there is formed a plurality of slots 22,- extendingradi'al- 1y inwardlyso that, they communicate with internalbore [9. Each of slots 22 ;extends partially circumferentially' around member 2] between- 9.0 and 150 (say 120") and are preferably so arranged that a radius of member 2|; bisectingthe arc of" slot 22: passes through the narrowest annu'lar portion ofmember 2| when bore I9is eccentric with respect to stock 2I. When member 21' has been bored and slotted as just described,

cylindrical portions I8 may be removed therefrom by cutting along dotted line 23. Each cylindrical portion I8 may then bebrazed or otherwise suitably attached to the end of portion ll of frame I I, the axis of cylindrical portion I8'being vertically disposed-as abovementioned when the spectaclesare in wearingposition.

The pivot-pin 26 which fits slidably within bore Ieof cylindricalportion I8 may be manufactured from cylindrical bar stock of suitable outsidesdiameter as shown in Fig. 5. Bar stock 21 has formed therein radially directed internal-.- ly'threaded recesses 28;and eachpinj26 maybe removed from pin stock, 2| 'by parting along dotted line'29. ,The outside diameter of pivot pihZB-thusformed-from pinstock 2lis so chosen as'to' permit'a smoothly sliding fit with them-- side diameter of bore I9' formed in member, 21.

When pivot pin 26 is mounted :within bore I9; pin 26' is adjusted until tappedrecess 28 'isdirected,

toward-slot '2-2.

Temple member 3| is-provided at its end'with anexternally threaded end boss '32 arranged to threadedly engage tapped recess 28 of 'pivotpin 26. Temple member 3| is also-preferably pronormal; wear-ing position with respect to the frame; I preferably make' the-outside diameter 7 of cylindrical portion I8 slightly eccentric with respectato the internal-bore -13 thereof. lit-canine that looking and contour finger 33 is slightly dis- -.placed'from -contact' with the external surface of position-isshownin dotted outline in Fig. 2' and it canbe seen that the swinging of temple member 3| has caused locking and contour finger 33- 'device maybe disassembled in this manner to; be displaced away from the outer surface of cylindrical portion I8. At this intermediatepointthe displacementis suchas toallowunscrewing of end boss-32 from recess 28 and the Pivot pin 26 may be permitted to slide out of;cy-.- lindrieal portion I8 after unscrewing temple; memberBI. Assembly of mypivoted connection is -accomplishedby a sequence ofoperations the: reverse of those just described for dis'assemblyf thereof.

It will be understood that the cylindrical sleeve I-8and temple end'need'not be manufactured in the precise manner described'hereinabovebut instead may be stamped, die formed, swedged,

etc.,-as desired. either as separate unitsprjas' integral-portions of frame and temple members I Fig. 6 is shown an adaptation of my invenr tionfor use with spectacleshaving a non-metallic frame and temple members. Frame member 38', correspondingto metallic member I6; is preferably providedwith an extension ofreduced di-' mension 31; Metallic member 38 may be attached to extension 31 by suitable means such as-small rivets 39 extending through member 38;

' extension 38 terminates incylindrical portion I8 identical to that previously described andpivot pin 26 is rotatably carried within cylindrical portion l8 in-a manner similar to thatdiscussed in connection with Fig-2. InFigs. -7 and 8 there is shown a modified form of the preferred embodiment .of mjz'invention. According to the structure there disclosed, as-designated by primed numerals corresponding to the numerals of Fig. 2, portion H of a spectacleframe terminates in a virtually cylindrical endportionor bearing sleeve l8 having a smooth circular bore I9. Within bore l9 there is slidably carried a bearing pin 26', identical in every respect-to bearing pin 26 described hereinaboye,

connection with Fig. 2. Bearing sleeve 18' is provided with a radial slot 22' communicating with bore I9 and extending arcuately from about 90 to about 150 of the circumference of hearing sleeve 18. Bore 19, in this form of the invention, is preferably concentric with the external cylindrical surface of bearing sleeve 18.

Upon the upper surface 53 of bearing sleeve [8' I provide a chamferl'ie centered approxi-- mately midway of the are of slot 22, and I preferably provide another chamfer 51 similarly located upon the lower surface 54 of sleeve !8. It is apparent that when temple member 31 is assembled to frame [6 by threadedly engaging-end boss 32 with threaded recess 28 of pin 26, locking and contour finger 33 can be rotated past upper and lower surfaces 53 and 54 only when temple member 3| is in the approximate center of its 90 swing. Thus the contouring of the outer surface of sleeve I8 performs the same function as does the eccentricity previously described, in looking temple member 3l in its corsembled or disassembled.

In Fig. 9 there is shown an alternate form of temple member adapted for use in my invention. In order to strengthen non-metallic temple members of spectacles, it has become customary to form the non-metallic substance around an embedded metal rod. My pivoted mounting is especially suited for such constructionas appears in Fig. 9. Plastic or other non-metallic temple member 6| has within it a metal rod 62 extending throughout the length of temple member El. Rod 62 projects outwardly at the pivoted end of temple member 6!, andterminatesin a threaded end boss 63 formed integrally with rod-62. End boss, 63 is constructed so that it may be threadedly received in threaded recess28 of pivot pin 26, thus eliminatingthe necessity of providing a riveted or other similar connection between the temple member and the threaded end boss. Temple member 6| has formed thereon an integral locking and contour finger 64 for the purposes described above in connection with finger 43.

It is understood that the riveted connections shown in Fig. 6 may be made in any suitable manner and may include plates concealing the rivet heads II desired. My invention may be practiced in conjunction with rimless spectacles not provided with a frame member I6, wherein cylindrical-bearing sleeve I I8 is fastened directly to the glass of a lens as by a hole formed in the lens itself in accordance with practice well known in the art.

It will be noted that the configuration of looking and contour finger 33 in its relation to cylindrical portion I 8 is such that the risk of accidental disengagement of temple member 3! from recess 28 in bearing pin 26 is minimized. Furthermore,'in the preferred embodiments of the invention, temple member 3| cannot become disengaged from pivot pin 26 except when the temple member is positioned at the intermediate point of its approximately 90 swing, and hence the possibility of unintentional disassembly of the temple member from the frame is substantially eliminated. It will further be noted that the sliding surfaces providing the pivoting movement have no threaded engagement one with the other as has been true in the conventional pivoted mounting for temple members, and therefore prolonged use and movement of my pivoted mounting will not result in an accidental unscrewing or loosening of the connection.

Although I have shown certain embodiments of my invention, including modifications thereof, ,1

substantially annular, horizontal end surfaces,

said sleeve having formed therein intermediate said end surfaces a radial slot extending about 120 arcuately of the sleeve and communicating said bore and outer surface, the radial distance from the center of the bore to the outer surface of the sleeve in the region of the end surfaces being appreciably less in alignment with the midpoint of the slot than the corresponding radial distances in alignment with the ends of the slot; a bearing pin pivotally carried in said bore and provided with an internally threaded, radially disposed recess directed toward said slot; and a temple member provided with an externally threaded end boss arranged to extend through the slot into threaded engagement with the recess, said temple member including an offset looking finger having a concave, forwardly directed face arranged to partially embrace the sleeve,

whereby said temple member ispermitted to be rotated about the axis of said end boss when the end boss is at the midpoint of the slot, and is restrained from such rotation when the end boss assumes other positions in the'slot.

2 A device as stated in claim 1 wherein said cylindrical bore is eccentric relative to the sub- HARRY O. COHEN. Y

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 362,377 I-Iammel May 3, 1887 1,394,863 Reynolds Oct. 25, 1921 1,504,212 Carlson Aug. 12, 1924 2,384,867

Williams Sept. 18, 1945 

